Electric regulator.



M. MOSKOWLTZ. ELECTRIC REGULATOR.

APPLICATION FILED MAR. 14, 1908. I 91 8,578. Patented Apr. 20, 1909.

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Patented Apr.

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APPLICATION FILED MAR. 14, 1908. 91 8,578.

Patented Apr. 20, 1909.

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M. MOSKOWITZ. ELEGTRIC REGULATOR.

APPLIOATION FILED MAR. 14, 1908. 918,578. 7 Patented Apr. 20, 1909.

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j 13 t L UNITED STATES PATENT ormon MORRIS MOSKOWITZ, OF NEW YORK, N. Y., ASSIGNOR TO UNITED STATES LIGHT AND HEATING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

ELECTRIC REGULATOR.

Specification of Letters Patent.

Patented April 20, 1909.

' Application filed march 14, 1908. mm m5. 420,999.

following is a specification, accompanied by drawings.

This invention relates to electric regulators, and the objects of the invention are to improve upon the construction andoperation of such regulators, increase their efficiency, reduce sparking, and enable a large range of regulation to be obtained with small movement of the parts.

Further objects of the invention will here inafter appear, and to these ends the invention consists of a regulator for carrying out all of the above objects embodying the features of construction, combination of elements and arran ment of parts, having the general mode 0 operation substantially as hereinafter fully described and claimed in this specification and shown in the accompanying drawings, in which,

Figure l is a ont elevation of the regulator; Fig. 2 is a side elevation of the same; Fig. 3 is a longitudinal sectional elevation taken through the brush holder; Fig; 4 is a detail perspective view of the armature for one of the sets of magnets; Fig. 5 is a longi tudinal sectional elevation of one of the.

' Fig. 7, the regulator is shown applied to a car lighting system, in which the generator A is adapted to be driven from the axle,

although this regulator, in accordance with my invention, may be used in any connec tion in which it is found a plicable, for regulating a work circuit or ibr regulating the field of a dynamo electric machine. The regulator may be used either for constant potential or constant current regulation. In the system shown in Fig. 7, by way of illustration, a stem battery B is connected across the line an C represents the work circuit with the lights or other translating devices D. The resistance R is connected in series with the Work circuit through the conducting segments E and brush F. The.

brush as shown is carried by the cross link G which in turn is pivotally connected at each end of the substantially parallel vertically hung links H and I, which are adapted to be pivoted at their upper ends J and K to a suitable support. The links G, Hamil are preferably of conducting materiah'in order to carry current to the brush F.

The links H and I are actuated or oscillated by means of the oppositely acting magnets L and M having cores or plungers O and P connected at each end to actuate said links H and I. A convenient mode of connecting the plungers O and P to the links is to provide pivoted cross heads or yokes Q and S on said links H and I to whichthe ends of the plungers O and P are rigidly but adjustably connected. As shown,

the cross heads Q and S are pivoted to the oints T and U. hle form of magnets L and M ings V and W connected in parallel to each other across the brushes of the dynamo A. The magnets L and M are also rovlded with the auxiliary windings X an Y connected in parallel to each other acrow the brushes of the dynamo A and controlled by the controlling or relay magnet a connected across the line.

The circuits are as follows: From the ositive brush of the dynamo A a wire 2 liaads to the point 3 on the cross wire 4 which connects the upper ends of the links H and I. From thence the current passes down through the links H and Iand through the cross link G to the brush F which bears upon the to of the segments E. This brush F. is move, horizontally by the swingin of the links H and I and therefore a pin slidably connects the link G with the brush as shown. The segments E are connected to sections of the resistance R and l rom said resistance a wire 5. leads to the lamps D. The other wire 6 of the work circuit leads back to the dynamo A. From the point 7 on the wire 2 a wire 8 leads to the oint 9, from which main windings V on W of the magnets branch. These main windings are again connected together at the point 10 and from thence a wire 11 leads to the point 12, from which a w1re.13 connects with the wire .6 at the point 14. The auxil- --iary winding X branches from the oint 15 and leads by wire 16 to the adjusta le contact oint 17. The auxiliary winding Y branc es from the point 18 and leads by Wire 19 to the adjustable contact 0111i 20.

The controlling magnet a is provi edwith the dynamo through wires 13'and 6. From the point 24, adjacent the resistance R, a wire 25 leads to'and through the controlling magnet a and thence by wire 26 to the polnt 22, and thence by wires 23, 13 and 6 to the negative pole of the dynamo, so that the magnet 11 is a potential magnet and regu-. lates for constant potential.

Auxiliary windings Xand Yon the magnets Land M are wound to oppose the main windin s V and W, so that either one or the other 0 the magnets T and U will be neutralized according to which one of the auxiliary windings X and Y is included in circuit by the action of the controlling magnet a. If the armature 0 is in contact with the contact point 20 as illustrated in Fig. 7 then. a circuit will be complete from the ositive brush of the dynamo A; throng? oth main and auxiliary windings W and i on the magnet M and back to the negative brush of the dynamo, so that magnet M will be neutralized. The auxiliary winding X of magnet L will be denergized because the circuit of the same is broken at the contact point 17, but the main winding W of magnet L will be energized and included in circuit, across the brushes of the dynamo. The magnet L will tend to draw its core 0 toward the left, as Fig. 7 is viewed, which will move the links H and I to the left and will also move the core P of magnet M to the left. The brush F will be moved along the segments E and more resistance will be included in the circuits of the lamps D. If the core 0 of controlling magnet A is moved into contact with the contact point 17, then the auxiliary winding X of magnet L will.

be energized, neutrahzing said magnet and the auxlliary coil Y of the magnet M will be deenei'fgized, so that the main coil W of magnet will tend to pull the core P to the right, asFig. 7 is viewed, thus moving the parts of the regulator and the brush F to.t e right and cutting resistance out of the work circuit.

Obviously, the arrangement of windings on the magnets L and M is advantageous because the magnets are quick acting and sensitive, and also because sparking between the core C and contact 17 and 20 is practically eliminated, clue to the neutralizing efiect of the differential windings on the magnets.

Figs. 1 to 6 on the drawings illustrate (Z represents a suitable backing or support of insulating material as slate or other suitable material. On this backing d are. supported the parts of the regulator. At the top are arranged two brackets e suitably held in place as by means of the bolts 1 and screws g. Pivotally hun from these brackets e by means of the P1115 h. are the vertical and substantially parallel links H and I. The cross heads or yokes Q and S are pivoted in these links by means of the pivot pins T and U. The lower ends of the links H and l are connected by the cross link G pivoted at its ends to the vertical links and providedintermediate its length with a bracket 2' carrying the vertical pin or member I). The insulated segments E are supported between clamps is secured to the backing d by means of the bolts Z and bound together by means of the longitudinal bolts 11., passing through insulated sleeves m. A U-shaped brush holder- 0 incloses the series of segments and carries the brushes which bear on the se ents. As the links H and I oscillate, the owercross link G will have a slight vertical movement which is ac I commodated by the sliding movement of the pin or member 1) moving vertically in the.

slot 72 in the end of the brush holder. The upper and lower arms of the brush holder are recessed as shown in Fig. Sand in the upper recess are arranged a plurality of brushes 9 in this instance twobrushes being shown. These brushes 9 areloosely held in.

position by the set screws 7* so that'as the brush holder is moved horizontally along .the segments a good contact is insured between the brushes 9 and the segments, for these brushes will accommodate themselves to=the surface over which they move. In the lower arm' of the brush holder is ar ranged a brush 8 spring pressed by means of a spring I. of any suitable form, preferably a leaf spring inserted between the brush and This spring tends to push v the brush holder. the brush 8 upwardly against the snts and forces the brush holder downwardly, so that the brushes 9 are pressed downwardly upon the segments. According to this construction, contact is made on both sides of the "ments to enable large'currents to be handled. Preferably a bracket u is connectedat the rear of the cross link G and a pin v on said bracketengages an aperture M at the rear of the upper arm of the brush holder 0, so that the brush holder-is maintained in a osition at all times substantially perpen icular to its direction of move ment, and binding is avoided. The segstant pull magnets of any suitable form, and

in the iron casing which in turn is carried I construction, the pull on either'of the cores vtop of the body of the casing, so that the spill over. 5-5

.ments E extend rearwardly through the backing ll at-E' in order that the sections of I the resistance It may be connected thereto.

Preferably arranged between the links H l and I are the magnets L and M supported on the studs 3 extending through the backing 1?. Within the casing a are arranged the'brass spoolsz in which are wound the differential coils of the magnets V and X for the magnet L, and IV and Y for the magnet M.

The magnets L and M are preferably conto this end I have shown tapering cores for the magnets and reversely tapered interior casings of iron. As shown, the core 0 of magnet L tapers in one direction and is provided with the reversely tapered casing or sleeve 0' inside of the spool 2, while the core P of magnet M tapers in the opposite direction to that of the core 0 and is provided with the reversely tapered sleeve P inside of its spool 2. According to this 0 and P is substantially constant irrespective ofthe position of the core in its magnet.

The ends ofthe cross headsoiuyokes Q, and S are preferably screw threaded at 30 and pass through apertures 31 in the ends of the cores 0 and P. Adjusting nuts 32 on the screw threaded ends of the yokes permit a vertical adjustment of the cores, but rigidly hold the ends of the cores in predetermined position with relation to the yokes.

In order to prevent binding during the oscillating movement of the links H and I, studs 33 are provided on the casing a; and disks or rollers 34 are carried by said studs and arranged between the sides of the link (zr, bearing against the interior surfaces of said sides as illustrated in end view in Fig. 2.

A suitable dash pot is provided for damping the movements of the regulator and in this instance, the dash pot, comprises the casing 35 having plugs 36 screw threaded into its ends. These plugs arein turn supported on the brackets 37 on the casing m by means of the screws 38. The dash pot casing is provided with an open top formed by a lip 39 above the level of the casing may be filled with oil, but will not ended plunger 40 provided with .an aperture 41 toreceive the vertical pin or finger 42 carried by the cross rod 43 which in turn" is pivoted at each end to the bracket-s 44 on the links H and I. The pin 42 is adapted to slide vertically in the aperture 41 in the plunger 40, to accommodate the slight ver tical movement of the cross rod 43 as the links H and l are oscillated by the magnets I1 and The controllin ma nets a are suitabl In the casing 35 is a double supported from the backing d by means of the bolts #16. The magnet a is provided with j a core 47 and the armature 0 which is carried by the spring 0 at one end, preferably of phosphor bronze secured to the bracket .lS which in turn is connected to the backing d as by means of the screws 49. The edges of the armature care grooved at 5'0 to enable a weight bracket or holder 51 to engage the armature c by means of the set screws 52 and be adjusted along the length of the armature. The shank 53 of the bracket 51 is preferably screw threaded and provided with a nut 51 to hold the weights W in place. The outer end of the armature c is provided with the spring connected at one end 56 to the armature and having the other end 57 bent upwardly and over the end of the armature and bearing against an adj usting screw 58 carried by the bracket 59. The adjustable contactpoint 20 is carried by the bracket 60 and the adjustable contact point 17 is carried by the bracket 61. These contact points 17 and 20 are preferably of platinum or other suitable material. The spring 55 is provided with the aperture 6:2 of sufficient diameter to permit the contact point 17 to pass therethrough without touching the spring, and also large enough to prevent the spring from bearing against the bracket 61. According to this construction of. the armature c, the spring 55 prevents the armature from jarring back and forth between the contacts 17 and 20 and insures accurate regulation and control.

I claim and desire to obtain by Letters Patent the following: i

1. Ina regulator, the combination of substantially parallel links, a cross arm pivotally connected to the lower ends ofsaid links, cross heads or yokes pivoted to said links, a pair of opposing magnets arranged side by side' within said llnks, cores or plungers for said magnets connected at each end to said cross heads, means controlled by the swinging movement of said links, and means for controlling the energization of said magnets.

2. In a regulator, the combination of a. series of insulated segments, a U-shaped brush holder for the same, a plurality of brushes loosely held by one arm of said holder, a spring pressed brush held by the other arm, and means for actuating said holder along the segments.

3. In a regulator, the combination of verticallyhung swinging links, magnets for actuating the same, a dash pot and plunger,

&

means for energizing one'or the other of saidcoils to neutralize one of said magnets,

vertically hung swinging links, cores or plungers connected to said links, a 'cross link, and means connected to be operated by said cross link.

- In a regulator, the combination of a,

pair of substantiallyparallel vertical freely swinging. links, a cross link pivotally connecting said vertical links, a pair of oppositely actingniagnets, cores or plungers for said magnets pivotally connected at each end to said links, and means controlled by said links.

- ing witnesses.

6. In a regulator, the combination ofa pair of opposing magnets, freely swinging MORRIS MOSKOWITZ. Witnesses:

E. VAN ZANDT,

JANE M. BAnRE'rr iii 

